Home / 3,278.58-4,917.84-1,330.32

Finding the Fourth Proportional to 3,278.58, 4,917.84 and 1,330.32

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Solution

The fourth proportional to 3,278.58, 4,917.84 and 1,330.32 is: 1,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.58 : 4,917.84 = 1,330.32 : x
  2. Step 2: Convert to fraction form
    3,278.58/4,917.84 = 1,330.32/x
  3. Step 3: Cross multiply
    3,278.58x = 4,917.84 × 1,330.32
  4. Step 4: Simplify right side
    3,278.58x = 6,542,300.91
  5. Step 5: Solve for x
    x = 6,542,300.91/3,278.58
  6. Step 6: Final answer
    x = 1,995.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.